期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 54, 期 38, 页码 9296-9306出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.5b02603
关键词
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资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
The dairy industry effluents, including whey waste and milk-based residues, are enriched in lactose and minor amounts of glucose that could potentially be converted to biofuels and biochemicals. Lactose was used in this work as a model compound of dairy effluents for gasification in supercritical water using a continuous flow tubular reactor. Four parameters impacting supercritical water gasification were studied, namely, temperature (550-700 degrees C), residence time (30-75 s), feed concentration (4-10 wt %), and catalyst concentration (0.2-0.8 wt %). The best total gas yields, carbon gasification efficiency, H-2 yields, and other major gases (CO2 and CH4) were obtained at 700 degrees C using a feed concentration of 4 wt % lactose and a residence time of 60 s at fixed pressure of 25 MPa. Furthermore, catalytic lactose gasification involving 0.8 wt % Na2CO3 resulted in maximum H-2 yield (22.4 mol/mol) compared to those obtained by 0.8 wt % K2CO3 (21.5 mol/mol) and noncatalytic gasification (16 mol/mol).
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